Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair testing has emerged as a potent means for detecting drug and alcohol consumption. Hair captures a prolonged history of alcohol and drugs by embedding biomarkers within the fibers of the hair as it grows. When sampled near the scalp, hair can offer an approximately three-month detection window for both alcohol and other substances. Hair collection is straightforward, relatively resistant to tampering, and easy to transport.
A sample measuring 1.5 inches, consisting of roughly 200 hair strands (similar in size to a #2 pencil), closest to the scalp provides 100mg of hair, which is the ideal sample for both screening and verification. For EtG, add-ons, and/or tests exceeding 10 panels, it is advised to have 150mg of the specimen. We suggest using a jeweler’s scale to weigh the specimen. If scalp hair is not an option, a similar quantity of body hair may be collected. References to head hair pertain to scalp hair exclusively. Body hair includes all other types of hair (facial, axillary, etc.).
Process Overview
The four fundamental steps in processing a drug test result in a laboratory are Accessioning, Screening, Extraction, and Confirmation.
Accessioning involves the initial entry of a sample into the laboratory's system. This encompasses ensuring the sample was securely sealed and shipped, assigning a random LAN (Laboratory Accessioning Number), and filling in any additional data entry absent from an electronic chain of custody system.
Screening is a preliminary check for illicit substances. While cost-effective for ruling out drug use in most samples, a positive screen must be verified to be valid in legal contexts. Any samples showing presumptive positives during Screening necessitate secondary confirmation.
If a sample shows a presumptive positive during Screening, more hair is collected from the initial sample and prepared for Extraction. At this stage, drugs are extracted from hair at much lower concentrations compared to other methods (e.g., urine or oral fluid), making hair drug screening the most challenging methodology to perform.
Verification of any positive screening result is done using GC/MS, GC/MS/MS, or LC/MS/MS. All presumptive positive samples are cleansed before confirmation as required. The complete laboratory process, from Accessioning to Confirmation, is evaluated under both the CAP (College of American Pathologists) Hair specification and accreditation to ISO/IEC 17025 standards.
Advantages of hair drug testing:
Limitations:
Note: While frequently referred to as "hair follicle tests", the analysis targets the hair strand, not the follicle beneath the scalp.
Why Hair Follicle Testing Beats Urine Testing in Frederick, CO
Extended Detection Window in Frederick, CO
Tamper-Resistant Testing Method in Frederick, CO
Convenient Nationwide Testing Locations and Local Locations in Frederick, CO
Simple, Confidential Process in Frederick, CO
Affordable Pricing and Fast Turnaround in Frederick, CO
In Frederick, CO, the rapid and dependable outcomes of hair follicle drug tests are unmatched. The swift processing ensures that results are both timely and precise, which is crucial for employers. Their exceptional accuracy in identifying substance use has made hair follicle testing a preferred choice. By providing fast results, these tests enable swift decision-making and ensure that time-sensitive needs are met effectively, leaving no room for uncertainty.
Compliance and Peace of Mind for Employers in Frederick, CO